Welding helmet



FIG. 1 is a front elevation view of a first welding helmet.

FIG. 2 is a back elevation view thereof.

FIG. 3 is a left side elevation view thereof.

FIG. 4 is a right side elevation view thereof.

FIG. 5 is a top plan view thereof.

FIG. 6 is a bottom plan view thereof.

FIG. 7 is a front top perspective view thereof.

FIG. 8 is a front bottom perspective view thereof.

FIG. 9 is a rear perspective view thereof.

FIG. 10 is a front elevation view of a second welding helmet having a different portal.

FIG. 11 is a back elevation view thereof.

FIG. 12 is a left side elevation view thereof.

FIG. 13 is a right side elevation view thereof.

FIG. 14 is a top plan view thereof.

FIG. 15 is a bottom plan view thereof.

FIG. 16 is a front top perspective view thereof.

FIG. 17 is a right side perspective view thereof; and,

FIG. 18 is rear side bottom perspective view thereof.

The broken lines showing the structure around the inner opening is included for the purpose of illustrating a portion of the welding helmet that form no part of the claimed design. 

CLAIM The ornamental design for a welding helmet, as shown and described. 